Texture Analysis of Tumor and Peritumoral Tissues Based on 18F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Hybrid Imaging in Patients With Rectal Cancer

Autor:	O. Rykhalskyi, Valerii E. Orel, Valerii B. Orel, T. S. Golovko, Andrii Ashykhmin
Rok vydání:	2021
Předmět:	Tumor size medicine.diagnostic_test business.industry Colorectal cancer Mean age Computed tomography medicine.disease Fluorodeoxyglucose positron emission tomography Positron emission tomography medicine Radiology Nuclear Medicine and imaging Venous Invasion In patient business Nuclear medicine
Zdroj:	Journal of Computer Assisted Tomography. 45:820-828
ISSN:	1532-3145 0363-8715
Popis:	OBJECTIVE This study aimed to determine whether texture parameters could be used in differentiation between the tumor and the peritumoral tissues based on hybrid 18F-Fluorodeoxyglucose positron emission tomography/computed tomography imaging for patients with rectal cancer. METHODS Seven parameters, including heterogeneity, entropy, energy, skewness, kurtosis, standard deviation, and average brightness, were extracted from positron emission tomography/computed tomography scans of 22 patients (12 male and 10 female; mean age, 61 ± 2 years). RESULTS The peritumoral tissue had a significantly lower value of the heterogeneity parameter (23%) than the tumor. Tumor size (r = -0.48, P < 0.05) and extramural venous invasion scores (r = 0.64, P < 0.05) correlated with heterogeneity in the peritumoral tissue. There were significant differences (P < 0.05) in the correlation coefficients between men and women. CONCLUSIONS Therefore, we provided additional quantitative information to differentiate the tumor from the peritumoral tissue and indicated possible application for extramural venous invasion evaluation in rectal cancer.
Databáze:	OpenAIRE
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